Given the task definition and input, reply with output. In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D". 

[header] How to put files on your removable disc [title] Plug the device into your computer. [step] A window should open with choices for what function you would like to perform. [title] Click on " open folder to view files ". <sep> (A) [title] Copy a file and paste it on " removable disc " [step] Right click on file and click on either cut or copy, then bring focus to the window containing your devices' files, right click in file window and choose paste. " or " right click on the file and choose " move to ", then choose your device. (B) [step] Use the begin and end button at the bottom. [title] Select the file in which you would like to start the removable disc creation process. (C) [step] In the " start folder " window, you will see the options that you do not have in the " view all files " window (like folders). [title] Select the file (s) you want to rotate. (D) [title] Select the header of format store to view your new drives. [step] Once you exit the format store you will be prompted to choose your usb drive, electronic disc, or ios drive.

A